Hydraulic motor



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' P. T. GRIFFITH.

Y HYDRAULIC 1101011.) No. 290,039.- Patented Dec; 11, 1883.

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HYDRAULIC MOTOR;

'l No: 29o-,039: Patented Dag; 11, 1883.

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l UNITED STATES PATENT OFFICE.'

PELEG T.' GRIFFITH, -DAN]3Y, VERMONT.

HYDRAULIC MOTOR.

SPECIIEIt'lATIOlTV forming part of Letters Patent No. 290,039, datedDecember 11, 1883,

Application led May 24, 1883. (No model.)

'To all whom it may concern.'

' and exact description of the same.

My invention relates to hydraulic motors. The object is to obtainall thepower which can be obtained from the falling column of water by simplermechanisms than those ordinarily in use or heretofore known.

In the accompanying drawings I have shown'V the supply-pipe., Fig. 4 isaseparate view of the inner wheel.

The general principle of my invention in, cludes a hollow wheel incommunication with the head of water, and provided with openings for thetangential discharge of the water from the periphery of saidwheel,whereby motion is imparted thereto, and a second wheel adapted toreceive the water from the rst, and provided with bucketsfitted toreceive the impact of the tangentially discharged water, the wheelsbeing 4mounted on independent shafts and rotating in opposite direction.

In the drawings, A represents the hollow wheel, or wheel provided withsuitable waterpassages. These passages are shown at a a, Fig. 2. Theyare formed on a curve, as shown, from the hollow center about the shaftto the periphery. The shaft bis solid and is journaled in suitablebearings, c d. Within the bearing c is a box, D, forming an enlargedbearing or annular cavity about the shaft. The end of the box next tothe wheel is provided with openings 1; but the bearing c is closely ttedto the shaft, to prevent the escape of water in that direction. There isan annular opening at 2 in the wheel A on the side' next to thebearings, for the admission of the water. It is provided with suitablepackings,

and fits snugly on the outer face next to the box, so that theperforations at the end` register with the annular opening in the wheel.By. this construction,`"water from the pipe, brought from any suitablehead, is discharged into the wheel A, and forced out the curved passage,and `is discharged tangentially, thus driving lthe wheel in its escape.

, The wheel E is mounted upon a separate axle, e, journaled in suitablebearings. This wheel consists of a solid disk or head, f, to which theshaft is fixed. The buckets h are set in series about the periphery ofthis disk, forming an annular ange to said disk. They are made of metalplate, and have a back, 3, and pocket 4, and are so constructed andarranged as to leave an opening, 5, between the rear of theV pocket andthe edgev of the back. This opening is for the escape of the water. Acircular rim, la, covers the ends of the pockets and gives them support.vided with pulleys m n, which are connected to belt o p on the shaft F.One belt being crossed, both wheelshafts are made to exert their powerupon'the shaft F. It will be apparent that the original impulse is givento the wheel A, which receives the first force of the water; but thestream escaping from the wheel A strikes in the bucketsV of the wheel E,imparts to it its force, causingv the wheel E to flow and join the wheelAfin its action upon the shaft F.

The bearings may be changed in their con struction, but not to omit thehollow box about the journal of the wheel A and its communication withthe said wheel.

Having thus described my invention, I claiml y 1. The wheel A,havinginterior hollow spaces or passages for the tangential discharge of thewater, and openings about its shaft communicating with a hollow box, incombination with an inclosing wheel mounted upon separate shaft, andprovided with buckets adapted to receive the tangential streams ofwater, all substantially as described.

2. The wheel E, having a solid head or disk, and having a flangecomposed of the pockets, constructed as described, provided withopenings between the pockets and the backs, Y and a The two shafts areprol roo flange, k, in combination with interior wheel having sidepassages and shaft, substantially directions, of the shaft F, runningparallel with as describedn the shafts of the said Wh eels A E, andconnected 3. The combination of the Wheel A, having thereto by suitablebe1ts,Whereby continuous 15 hollow spaces or water-passages and openingsmotion in one direction is imparted to the said 5 about the shaft, andabearing, @,With a stationshaft F, substantially as described.

ary box about the j ournal, provided With op en- In testimony whereof Ihave signed my name ings registering with the opening at the shaft, tothis specification in the presence of two suband having alsopipe-eonnection, all substanscribing Witnesses.

tially as described. PELEG T. GRIFFITH. Io 4. In a Water-n1otor of theclass described, XVitliesses:

the con1bination,with the wheelsAEand their GEORGE MINETT, respectiveshafts, adapted to move in opposite EDWARD J. READ. y

